EZ1117CST-2.5.TR [SEMTECH]
Fixed Positive LDO Regulator, 2.5V, 1.2V Dropout, BIPolar, PDSO4, TO-261AA, SOT-223, 4 PIN;
| 型号： | EZ1117CST-2.5.TR |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | Fixed Positive LDO Regulator, 2.5V, 1.2V Dropout, BIPolar, PDSO4, TO-261AA, SOT-223, 4 PIN 光电二极管 输出元件 调节器 |
| 文件： | 总6页 (文件大小：142K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EZ1117 & EZ1117A
0.8 & 1.0 Amp Positive
Voltage Regulators
POWER MANAGEMENT
Description
Features
The EZ1117 series of high performance positive voltage
regulators are designed for use in applications requiring
low dropout performance at up to 0.8A (1A for EZ1117A).
u Low dropout performance: 1.2V max. for EZ1117,
1.3V max. for EZ1117A
u Full current rating over line and temperature
u Fast transient response
Additionally, the EZ1117 series provides excellent
regulation over variations in line, load and temperature.
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device.
u +2% total output regulation over line, load and
temperature
u Adjust pin current max 90µA over temperature
u Fixed/adjustable output voltage
u Line regulation 0.2% max.
u Load regulation 0.4% max.
u SOT-223 and TO-263 packages
The EZ1117 series of three terminal regulators offer fixed
and adjustable voltage options available in the space
saving SOT-223 and TO-263 packages.
Applications
u Low voltage microcontrollers
u Switching power supply post-regulation
Typical Application Circuit
Fixed Voltage Regulator
U1
EZ1117-3.3
3
2
TAB
VIN > 4.75V
VOUT = 3.3V
IN
OUT
+
+
C1
10uF Tant.
C2
GND
1
10uF Tant. Min.
Adjustable Voltage Regulator
U1
IN
EZ1117
OUT
3
2
TAB
VIN > 4.75V
VOUT = 3.45V
+
+
C1
R1
C2
10uF Tant.
ADJ
1
133 Ohm, 1%
10uF Tant. Min
R2
232 Ohm, 1%
R2
R1
VOUT = VREF • 1+
+ IADJ • R2
Notes:
(1) C1 needed if device is far from filter capacitors
(2) C2 minimum value required for stability
Revision 1, December 2000
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EZ1117 & EZ1117A
POWER MANAGEMENT
Absolute Maximum Ratings
Parameter
Symbol
Maximum
Units
Input Supply Voltage
Power Dissipation
VIN
PD
7
V
Internally Limited
W
Thermal Resistance Junction to Case
SOT-223
TO-263
15
3
°C/W
θJC
Thermal Resistance Junction to Ambient
SOT-223
TO-263
156
60
°C/W
θJA
Operating Junction Temperature Range
Storage Temperature Range
TJ
0 to 125
-65 to 150
300
°C
°C
°C
kV
TSTG
TLEAD
ESD
Lead Temperature (Soldering) 10 Sec.
ESD Rating (Human Body Model)
2
Electrical Characteristics(6)
Unless otherwise specified: Adj. Option: VIN = 2.65V to 7.0V and IO = 10mA to IRATED. Fixed Options: IO = 0mA to IRATED, VIN (2.5V) = 3.9V to 7.0V,
VIN (2.85V) = 4.25V to 7.0V, VIN (3.3V) = 4.75V to 7.0V.
(5)
Parameter
Symbol
VIN
IO
TJ
Min
Typ
Max
Units
Output Voltage (1)
VO
5V
OmA
25°C
O.T.
25°C
O.T.
O.T.
O.T.
O.T.
-1%
-2%
VO
+1%
+2%
1.262
1.275
0.2
V
(Fixed Voltage Versions)
Reference Voltage (1)
(Adj Voltage Version)
Line Regulation (1)
VREF
5V
5V
10mA
10mA
1.238
1.225
1.250
V
REG(LINE)
REG(LOAD)
VD
0.035
0.2
%
%
V
Load Regulation (1)
Dropout Voltage(1)(2)
0.4
100mA
500mA
800mA
1000mA
1.00
1.05
1.10
1.10
1.10
1.15
1.20
1.30
EZ1117A
Current Limit
EZ1117
EZ1117A
ICL
O.T.
O.T.
O.T.
0.8
1.0
A
Quiescent Current
Fixed Voltage Version
IQ
5V
10
13
mA
Temperature Coefficient
TC
0.005
%/°C
2000 Semtech Corp.
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EZ1117 & EZ1117A
POWER MANAGEMENT
Electrical Characteristics (Cont.)(6)
Unless otherwise specified: Adj. Option: VIN = 2.65V to 7.0V and IO = 10mA to IRATED. Fixed Options: IO = 0mA to IRATED, VIN (2.5V) = 3.9V to 7.0V,
VIN (2.85V) = 4.25V to 7.0V, VIN (3.3V) = 4.75V to 7.0V.
(5)
Parameter
Symbol
IADJ
VIN
IO
TJ
Min
Typ
Max
Units
Adjust Pin Current
O.T.
O.T.
55
90
5
µA
µA
Adjust Pin Current
Change
0.2
∆IADJ
Temperature Stability
TS
IO
O.T.
O.T.
0.5
5
%
Minimum Load Current
Adj Voltage Version
5V
5V
10
mA
RMS Output Noise(3)
VN
RA
25°C
0.003
72
%VO
dB
Ripple Rejection Ratio(4)
IRATED
O.T.
60
NOTES:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) ∆V , ∆V = 1%.
(3) Bandwidth of 10 Hz to 10kHz.
OUT
REF
(4) 120Hz input ripple (C for ADJ = 25µF).
ADJ
(5) O.T. = over specified operating junction temperature range.
(6) I
= 1A for EZ1117A and 800mA for EZ1117.
RATED
2000 Semtech Corp.
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EZ1117 & EZ1117A
POWER MANAGEMENT
Pin Configuration
Ordering Information
(1)(2)
Device
Package
EZ1117CST-X.X.TR
EZ1117ACST-X.X.TR
SOT-223
EZ1117CM-X.X.TR
EZ1117ACM-X.X.TR
TO-263
SOT-223
TO-263
Notes:
(1) Where X.X denotes voltage options. Available
voltages are: 2.5V, 2.85V and 3.3V. Leave blank for
adjustable version (1.3 to 5.7V). Contact factory for
additional voltage options.
(2) Only available in tape and reel packaging. A reel
contains 2500 (SOT-223) or 800 (TO-263) devices.
Block Diagram
2000 Semtech Corp.
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EZ1117 & EZ1117A
POWER MANAGEMENT
Outline Drawing - TO-263
Land Pattern - TO-263
2000 Semtech Corp.
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EZ1117 & EZ1117A
POWER MANAGEMENT
Outline Drawing - SOT-223
Land Pattern - SOT-223
Contact Information
Semtech Corporation
Power Management Products Division
652 Mitchell Rd., Newbury Park, CA 91320
Phone: (805)498-2111 FAX (805)498-3804
2000 Semtech Corp.
6
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